PubMed · 2314317
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A Parry. 1990. Beware sheep!. https://pubmed.ncbi.nlm.nih.gov/2314317/
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We report the case of a young woman taking a low-dose oral contraceptive (gestodene 0.075mg and ethinylestradiol 0.02mg) in whom we documented by both hormonal assays and sonographic evaluations the occurrence of ovulation, oocyte fertilization and embryo implantation. However, the implantation process did not complete and only a biochemical pregnancy was registered. On the basis of known actions of estroprogestin on endometrium that are not conducive to implantation, it is possible that the pregnancy loss was originated by oral contraceptive's hormonal influence at endometrial level.
We assessed 77 twin pregnancies, comprising complete hydatidiform mole (CHM) and healthy co-twin, to ascertain the risks to the mother and baby of continuing the pregnancy, versus termination. 24 women with histologically confirmed CHM and healthy co-twin pregnancies decided to have a termination. 53 women continued with their pregnancies, though two had to have terminations because of severe pre-eclampsia, and 23 spontaneously aborted (<24 weeks' gestation). 28 pregnancies lasted 24 weeks or more, resulting in 20 livebirths. Chemotherapy to eliminate persistent gestational trophoblastic disease (pGTD) was required in three of 19 women (16%; 95% CI 3-39) who terminated their pregnancies in the first trimester, and in 12 of 58 (21%; 95% CI 11-33%) who continued their pregnancies. CHM and healthy co-twin pregnancies have a high risk of spontaneous abortion, but about 40% result in livebirths, without significantly increasing the risk of pGTD.
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